A device for temperature and rolling control of a bar

Abstract

The application provides a kind of bar temperature control rolling device, it relates to rolling equipment technical field, it includes: casing, with feed inlet and discharge outlet, feed inlet and discharge outlet are communicated by rolling track between;Rolling wheel group, multiple rolling wheel groups are sequentially arranged in rolling track;Each rolling wheel group includes two main rolling wheels and two slave rolling wheels;Temperature sensor, the direction of each rolling wheel group's incoming material is provided with temperature sensor;Loop pipe, it is arranged between the two main rolling wheels of same rolling wheel group, multiple spray heads are distributed in the circumferential direction of loop pipe, and the water outlet direction of spray head is towards between the main rolling wheel and slave rolling wheel used in cooperation;Loop pipe is connected with cooling water pool by water inlet pipe, and water inlet valve is arranged on water inlet pipe.When temperature sensor detects that the temperature of the certain area of bar is too high, the water inlet valve corresponding to the area is opened, and the cooling water is directly sprayed to the bar between the main rolling wheel and slave rolling wheel from multiple directions, so that the cooling effect is better, so as to realize temperature control rolling.

Description

Technical Field

[0001] This utility model relates to the field of rolling equipment technology, and in particular to a bar temperature control and rolling device. Background Technology

[0002] Currently, high-speed bar mills are used to produce bars to achieve high output. Temperature and rolling control are implemented during the production process to reduce costs by reducing the amount of alloying elements used, while refining the microstructure of the steel (such as fine ferrite grains and uniformly distributed pearlite), ultimately improving the comprehensive mechanical properties (strength, toughness, and plasticity) of the steel.

[0003] In the patent document with application number CN201820705267.4, a distance sensor, a drive motor, and a temperature sensor are set up. The distance sensor detects whether material is being fed into the feed trough, thereby starting the drive motor to roll the material. The temperature sensor and four control valves independently manage the temperature of four areas of the material (by opening the control valves, cooling water is brought into contact with the drive wheel through the diversion pipe, thereby controlling the temperature of the material surface). By controlling the temperature and rolling of the material, the mechanical properties of the finished wire rod can be achieved without adding expensive alloying elements. Under the premise of ensuring production efficiency, the mechanical properties of the finished product can be greatly improved.

[0004] However, the above method, which uses cooling water to first contact the driving wheel to cool the driving wheel and indirectly cool the bar, does not have a very good cooling effect and needs to be improved. Utility Model Content

[0005] In view of the above situation, this utility model provides a bar temperature control and rolling device, which aims to solve the technical problem that the existing technology uses cooling water to first contact the driving wheel to cool the driving wheel in order to indirectly cool the bar, and the cooling effect is not very good.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a bar temperature and rolling control device, comprising:

[0008] The casing has a feed inlet and a discharge outlet, which are connected by a rolling mill.

[0009] Roller sets, multiple roller sets are arranged sequentially in the roller track; each roller set includes two main rollers and two slave rollers, with one main roller and one slave roller corresponding to each other; the main rollers are driven by a drive motor;

[0010] Temperature sensors are installed in the material feeding direction of each rolling mill group. The temperature sensors are used to detect the temperature of the bar.

[0011] The ring pipe is set between the two main rolling mills in the same rolling mill group. Multiple spray heads are distributed circumferentially on the ring pipe, and the water outlet of the spray heads is directed towards the main rolling mill and the slave rolling mill that are used together. The ring pipe is connected to a cooling water pool through a water inlet pipe. A water inlet valve is installed on the water inlet pipe, and the water inlet valve is associated with a temperature sensor.

[0012] In some embodiments of this utility model, the drive motor is equipped with a frequency converter; an infrared camera for measuring the temperature of the bar is provided above the discharge port, and the infrared camera is associated with the frequency converter.

[0013] In some embodiments of this utility model, the cooling water tank is equipped with a level gauge; the cooling water tank is connected to a water supply pipe, and a water supply valve is installed on the water supply pipe, which is associated with the level gauge.

[0014] In some embodiments of this utility model, a crossbar is provided above the interior of the housing, and the crossbar is connected to the ring tube via a first suspension rod.

[0015] In some embodiments of this utility model, the inlet pipe and the ring pipe are connected by a telescopic flexible hose, and the first hanger is slidably connected to the crossbar.

[0016] In some embodiments of this invention, the temperature sensor is connected to the crossbar via a second suspension rod.

[0017] In some embodiments of this utility model, the second lifting rod is slidably connected to the crossbar.

[0018] In some embodiments of this utility model, a cavity is provided below the rolling mill; the cavity has a water outlet, and a water pump, a cyclone filter, a precision filter, and a heat exchanger are connected in sequence to the water outlet, and the material outlet of the heat exchanger is connected to the inlet of the cooling water pool.

[0019] The embodiments of this utility model have at least the following advantages or beneficial effects:

[0020] By setting up multiple rolling mill sets, ring pipes, and water inlet valves, each rolling mill set and ring pipe corresponds to a different area of ​​the bar. When the temperature sensor detects that a certain area of ​​the bar is too hot, the water inlet valve corresponding to that area opens, spraying cooling water directly onto the bar located between the main rolling mill and the slave rolling mill from multiple directions. This heat exchange is more direct and has a better cooling effect than existing technologies, thereby achieving temperature and rolling control.

[0021] Other features and advantages of this invention will be set forth in the following description. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A schematic diagram of a bar temperature and rolling control device;

[0024] Figure 2 for Figure 1 A sectional view along direction AA;

[0025] Figure 3 This is a schematic diagram of a ring pipe with multiple spray heads distributed circumferentially.

[0026] icon:

[0027] 1-Machine casing, 11-Feed inlet, 12-Discharge outlet, 13-Rolling track, 14-Cavity, 15-Crossbar

[0028] 2-Rolling roller assembly, 21-Main rolling roller, 22-Dieter rolling roller, 23-Drive motor

[0029] 3-Temperature sensor, 31-Second boom,

[0030] 4-Ring pipe, 41-Sprinkler head, 42-Inlet pipe, 43-Inlet valve, 44-First hanger, 45-Telescopic hose

[0031] 5-Infrared camera,

[0032] 61-Water pump, 62-Cyclone filter, 63-Precision filter, 64-Heat exchanger, 641-Material outlet of heat exchanger.

[0033] 7-Cooling water tank, 71-Level gauge, 72-Water supply pipe, 73-Water supply valve. Detailed Implementation

[0034] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention.

[0035] In the description of the embodiments of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "inner", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0038] The embodiments of this utility model will be described in detail below.

[0039] See Figures 1-3 This embodiment provides a bar temperature control and rolling device, including a housing 1, a rolling mill group 2, a temperature sensor 3, and a ring pipe 4.

[0040] The housing 1 has a feed inlet 11 and a discharge outlet 12, which are connected by a rolling mill 13, and a cavity 14 is located below the rolling mill 13.

[0041] Multiple rolling mill sets 2 are arranged sequentially in the rolling mill 13 ( Figure 1 Three rolling mill groups 2 are outlined with dashed lines. Each rolling mill group 2 includes two main rolling mills 21 and two slave rolling mills 22, with one main rolling mill 21 and one slave rolling mill 22 corresponding to each other; the main rolling mill 21 is connected to a drive motor 23, and the main rolling mill 21 and the slave rolling mill 22 work together to roll the bar.

[0042] Temperature sensor 3 is used to detect the temperature of the bar stock. Temperature sensor 3 is installed in the feeding direction of each rolling mill group 2.

[0043] The ring pipe 4 is set between the two main rolling rollers 21 in the same rolling roller group 2. Multiple spray heads 41 are distributed circumferentially on the ring pipe 4. The water outlet direction of the spray heads 41 is towards the main rolling roller 21 and the slave rolling roller 22 used in conjunction. The ring pipe 4 is connected to the cooling water pool 7 through the water inlet pipe 42. The water inlet pipe 42 is equipped with a water inlet valve 43, which is associated with the temperature sensor 3.

[0044] One end of the bar is inserted into the feed port 11, and the drive motor 23 is started. The bar will move towards the discharge port 12 by passing through each rolling mill group 2 in sequence. Through the arrangement of multiple rolling mill groups 2, ring pipes 4, and water inlet valves 43, each rolling mill group 2 and ring pipe 4 corresponds to a different area of ​​the bar. When the temperature sensor 3 detects that a certain area of ​​the bar has an excessively high temperature, the water inlet valve 43 corresponding to that area is opened, and cooling water is sprayed directly onto the bar located between the main rolling mill 21 and the slave rolling mill 22 from multiple directions. This heat exchange is more direct and has a better cooling effect than the existing technology, thereby achieving temperature control and rolling control.

[0045] A crossbar 15 is installed on the upper part of the interior of the casing 1. The crossbar 15 is connected to the ring pipe 4 via a first suspension rod 44, that is, the ring pipe 4 is installed by suspension. The water inlet pipe 42 and the ring pipe 4 are connected by a telescopic hose 45. The first suspension rod 44 is slidably connected to the crossbar 15, so that the position of the ring pipe 4 can be adjusted as needed.

[0046] Temperature sensor 3 is connected to crossbar 15 via second rod 31. The second rod 31 and crossbar 15 are slidably connected, which facilitates the installation of temperature sensor 3 and allows the position of temperature sensor 3 to be adjusted as needed.

[0047] The drive motor 23 is equipped with a frequency converter, and an infrared camera 5 for measuring the temperature of the bar is installed above the discharge port 12. The infrared camera 5 is associated with the frequency converter. When the temperature detected by the infrared camera 5 is higher than a predetermined threshold, it indicates that the bar may be moving too fast and cannot be effectively cooled to the expected temperature. At this time, the output power of the drive motor 23 can be appropriately reduced by the frequency converter to reduce the speed of the main rolling roller 21, thereby ensuring the temperature control effect.

[0048] Cavity 14 has a water outlet, which is sequentially connected to a water pump 61, a cyclone filter 62, a precision filter 63, and a heat exchanger 64. The material outlet 641 of the heat exchanger is connected to the inlet of the cooling water pool 7. Used cooling water falls into cavity 14. The cyclone filter 62 and the precision filter 63 purify the used cooling water; the heat exchanger 64 cools the used cooling water, facilitating its recycling. The cyclone filter 62 uses centrifugal force to separate impurities in the cooling water. The filtration capacity of the cyclone filter 62 and the precision filter 63 increases sequentially, achieving staged filtration to reduce the likelihood of clogging of the precision filter 63 and the heat exchanger 64.

[0049] The cooling water tank 7 is equipped with a level gauge 71; the cooling water tank 7 is connected to a water supply pipe 72, and a water supply valve 73 is installed on the water supply pipe 72. The water supply valve 73 is associated with the level gauge 71. When the water level in the cooling water tank 7 drops too much, the water supply valve 73 opens to replenish the cooling water tank 7 with cooling water.

[0050] Finally, it should be noted that the above are merely preferred embodiments of this application and are not intended to limit this application. For those skilled in the art, this application can have various modifications and variations. Without conflict, the embodiments and features described in the embodiments of this application can be arbitrarily combined with each other. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A bar temperature and rolling control device, characterized in that, include: The machine casing has a feed inlet and a discharge outlet, which are connected by a rolling mill. Roller sets, with multiple roller sets arranged sequentially in the rolling mill; each roller set includes two main rollers and two slave rollers, with the main rollers and slave rollers corresponding one-to-one; the main rollers are driven by a drive motor. Temperature sensors are provided in the material feeding direction of each of the rolling mill groups, and the temperature sensors are used to detect the temperature of the bar. A ring pipe is disposed between the two main rolling mills in the same rolling mill group. Multiple spray heads are distributed circumferentially on the ring pipe, and the water outlet direction of the spray heads is towards the main rolling mill and the slave rolling mill that are used in conjunction. The ring pipe is connected to a cooling water pool through a water inlet pipe, and a water inlet valve is provided on the water inlet pipe. The water inlet valve is associated with the temperature sensor.

2. The bar temperature and rolling control device according to claim 1, characterized in that, The drive motor is equipped with a frequency converter; an infrared camera for measuring the temperature of the bar is installed above the discharge port, and the infrared camera is associated with the frequency converter.

3. The bar temperature and rolling control device according to claim 1, characterized in that, The cooling water tank is equipped with a level gauge; the cooling water tank is connected to a water supply pipe, and a water supply valve is installed on the water supply pipe, which is associated with the level gauge.

4. The bar temperature and rolling control device according to claim 1, characterized in that, A crossbar is provided on the upper part of the interior of the housing, and the crossbar is connected to the annular tube through a first hanger.

5. The bar temperature and rolling control device according to claim 4, characterized in that, The inlet pipe and the ring pipe are connected by a telescopic flexible hose, and the first hanger is slidably connected to the crossbar.

6. The bar temperature and rolling control device according to claim 4, characterized in that, The temperature sensor is connected to the crossbar via a second suspension rod.

7. The bar temperature and rolling control device according to claim 6, characterized in that, The second boom is slidably connected to the crossbar.

8. The bar temperature and rolling control device according to any one of claims 1 to 7, characterized in that, The rolling mill has a cavity below it; the cavity has a water outlet, and the water outlet is connected in sequence to a water pump, a cyclone filter, a precision filter, and a heat exchanger. The material outlet of the heat exchanger is connected to the inlet of the cooling water pool.

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